The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Functional activation in motor cortex reflects the direction and the degree of handedness
Open accessAbstract
Handedness is the clearest example of behavioral lateralization in humans. It is not known whether the obvious asymmetry manifested by hand preference is associated with similar asymmetry in brain activation during movement. We examined the functional activation in cortical motor areas during movement of the dominant and nondominant hand in groups of right-handed and left-handed subjects and found that use of the dominant hand was associated with a greater volume of activation in the contralateral motor cortex. Furthermore, there was a separate relation between the degree of handedness and the extent of functional lateralization in the motor cortex. The patterns of functional activation associated with the direction and degree of handedness suggest that these aspects are independent and are coded separately in the brain.
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Cites
The assessment and analysis of handedness: The Edinburgh inventory
Oldfield, R. C. (1971) · Neuropsychologia · doi:10.1016/0028-3932(71)90067-4 · Cited by 35,900
Co-Planar Stereotaxic Atlas of the Human Brain
Talairach, J., & Tournoux, P. (1988) · Medical Entomology and Zoology · Cited by 11,798
Co-planar stereotaxic atlas of the human brain
Laitinen, L. (1989) · Clinical Neurology and Neurosurgery · doi:10.1016/0303-8467(89)90128-5 · Cited by 7,565
PENFIELD, W., & BOLDREY, E. (1937) · Brain · doi:10.1093/brain/60.4.389 · Cited by 4,188
The structural organization of layer IV in the somatosensory region (S I) of mouse cerebral cortex
Woolsey, T. A., & Van der Loos, H. (1970) · Brain Research · doi:10.1016/0006-8993(70)90079-x · Cited by 2,254
Human Brain: Left-Right Asymmetries in Temporal Speech Region
Geschwind, N., & Levitsky, W. (1968) · Science · doi:10.1126/science.161.3837.186 · Cited by 2,225
Functional MRI evidence for adult motor cortex plasticity during motor skill learning
Kami, A., Meyer, G., Jezzard, P., Adams, M. M., Turner, R., & Ungerleider, L. G. (1995) · Nature · doi:10.1038/377155a0 · Cited by 1,883
The origin of corticospinal projections from the premotor areas in the frontal lobe
Dum, R., & Strick, P. (1991) · The Journal of Neuroscience · doi:10.1523/jneurosci.11-03-00667.1991 · Cited by 1,442
Pascual-Leone, A., Nguyet, D., Cohen, L. G., Brasil-Neto, J. P., Cammarota, A., & Hallett, M. (1995) · Journal of Neurophysiology · doi:10.1152/jn.1995.74.3.1037 · Cited by 1,410
Functional Magnetic Resonance Imaging of Motor Cortex: Hemispheric Asymmetry and Handedness
Kim, S.-G., Ashe, J., Hendrich, K., Ellermann, J. M., Merkle, H., Uğurbil, K., & Georgopoulos, A. P. (1993) · Science · doi:10.1126/science.8342027 · Cited by 983
Self-citation
Cited by
A distributed left hemisphere network active during planning of everyday tool use skills
Johnson-Frey, S. H., Newman-Norlund, R., & Grafton, S. T. (2005) · Cerebral Cortex · doi:10.1093/cercor/bhh169 · Cited by 558
Cortical Networks Related to Human Use of Tools
Lewis, J. W. (2006) · The Neuroscientist · doi:10.1177/1073858406288327 · Cited by 451
Häger-Ross, C., & Schieber, M. H. (2000) · The Journal of Neuroscience · doi:10.1523/jneurosci.20-22-08542.2000 · Cited by 444
Schaefer, S. Y., Haaland, K. Y., & Sainburg, R. L. (2007) · Brain · doi:10.1093/brain/awm145 · Cited by 300
The dorsal premotor cortex orchestrates concurrent speech and fingertapping movements
Meister, I. G., Buelte, D., Staedtgen, M., Boroojerdi, B., & Sparing, R. (2009) · European Journal of Neuroscience · doi:10.1111/j.1460-9568.2009.06729.x · Cited by 41
Metadata
- Authors
- Dassonville, P., Zhu, X.-H., Ugurbil, K., Kim, S.-G., & Ashe, J.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1997-12-09
- Volume
- 94
- Issue
- 25
- Pages
- 14015-14018
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2157236570
- Cited by
- 300
- References
- 31
- FWCI
- 2.01
- Type
- journal article
- Language
- en
- Open access
- green
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- Dassonville, P., Zhu, X.-H., Ugurbil, K., Kim, S.-G., & Ashe, J. (1997). Functional activation in motor cortex reflects the direction and the degree of handedness. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.94.25.14015
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.